[dependabot] Merge package manager as per ADR-0002

[KarlG-nbis]

Descirption

As per ADR-0002 we agreed to update the dependabot package managers and have them as follows:

Package manager per ecosystem (per release (ie main and release_v1 branches))

• package-ecosystem: docker
  • directories: "/sda", "/sda-download", "/sda-validator/orchestrator", "/sda-sftp-inbox", "/sda-doa", "/rabbitmq", "/postgresql"
• package-ecosystem: gomod
  • directories: "/sda", "/sda-download", "/sda-validator/orchestrator"
• package-ecosystem: maven
  • directories: "/sda-sftp-inbox"
• package-ecosystem: maven
  • directories: "/sda-doa"
• package-ecosystem: github-actions
  • directories: "/"

To achieve this we can utilise dependabot groups

A/Cs

• Dependabot package managers is updated to adhere to the mentioned setup